From 9566e8af25f87ad034a984db9d847942e454a180 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Mon, 25 Jul 2022 10:08:28 -0700
Subject: Allow `class` to implement COM interface, [DLLExport] (#2338)

* Allow `class` to implement COM interface, [DLLExport]

* Fix [COM] usage in tests and examples with UUIDs.

Co-authored-by: Yong He <yhe@nvidia.com>
---
 source/slang/slang-ir-util.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'source/slang/slang-ir-util.cpp')

diff --git a/source/slang/slang-ir-util.cpp b/source/slang/slang-ir-util.cpp
index fda7b25cc..a515217d9 100644
--- a/source/slang/slang-ir-util.cpp
+++ b/source/slang/slang-ir-util.cpp
@@ -12,6 +12,18 @@ bool isPointerOfType(IRInst* type, IROp opCode)
     return false;
 }
 
+Dictionary<IRInst*, IRInst*> buildInterfaceRequirementDict(IRInterfaceType* interfaceType)
+{
+    Dictionary<IRInst*, IRInst*> result;
+    for (UInt i = 0; i < interfaceType->getOperandCount(); i++)
+    {
+        auto entry = as<IRInterfaceRequirementEntry>(interfaceType->getOperand(i));
+        if (!entry) continue;
+        result[entry->getRequirementKey()] = entry->getRequirementVal();
+    }
+    return result;
+}
+
 bool isPointerOfType(IRInst* type, IRInst* elementType)
 {
     if (auto ptrType = as<IRPtrTypeBase>(type))
-- 
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